how can i do that
Download electrum from
its official website.
Create a new wallet, select "Standard Wallet" and then "I already have a seed". Go to "options" and check "BIP39 seed". Enter your seed phrase and click on "Next". Select "native segwit (p2wpkh)" and click on "Next".
Take note that if you haven't already exported your seed phrase from blockchain.com, you should export your seed phrase from there first. Your seed phrase is a series of 12 words and it's also called "Recovery phrase".
After importing your wallet to electrum, you should see your unconfirmed transaction there. Right click on it and select "Child pays for parent". Set the total feerate and then click on "OK".
To know the required fee rate, you can visit mempool.space.
or if i do nothing then how many days should i have to wait for it to confirm?
There is no way to know when your transaction will be confirmed.
I can only say that it's unlikely that your transaction will be confirmed soon. The last time miners included such low fee rate transactions in the blockchain was
more than 8 months ago three months ago.
is it possible for transfer to not completed ever?
Many of the nodes will drop your transaction from their mempool after 2 weeks. But as long as the transaction is valid, it's possible that it's confirmed. It's possible that your transaction stays unconfirmed for many months and finally gets confirmed.
You should send those same amount of coins or a higher amount in a new transaction and increase the transaction fee so that your new transaction can be confirmed first.
There is no need to make the new transaction manually.
OP can right click on the unconfirmed transaction and select "Child pays for parent".